Mark G. Birkmann, OD
- Medicare patients, 2024
- 261
- Part D claims, 2024
- 252
- Industry payments
- $83
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 1013 W University Ave, Georgetown, TX 78628
- Practice phone
- Call (512) 869-8821
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Georgetown Vision Center
Eye care practice · Georgetown, Texas
Find Mark Birkmann's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Mark G. Birkmann is an optometrist in Georgetown, Texas
Mark Birkmann practices at Georgetown Vision Center in Georgetown, Texas.
Mark Birkmann's NPI, 1609880889, was assigned on July 27, 2006. Mark Birkmann graduated from University of Missouri St Louis - School of Optometry in 1992. Mark Birkmann holds Texas license 9137TG.
- NPI
- 1609880889NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628105616
- NPI enumeration date
- July 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (512) 869-8821
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark G. Birkmann practices at Georgetown Vision Center in Georgetown, Texas
Mark Birkmann's primary practice is Georgetown Vision Center, at 1013 W University Ave, Georgetown, TX 78628. The practice phone is (512) 869-8821.
- Georgetown Vision Center1013 W University Ave, Georgetown, TX 78628Phone(512) 869-8821
Source: Dmand AI Affiliation Data
Mark G. Birkmann is affiliated with 2 sites of care and 1 medical group
Mark Birkmann's primary practice is Georgetown Vision Center in Georgetown, Texas. Dmand AI also links Mark Birkmann to 1 physician office and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mark G. Birkmann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Birkmann practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Georgetown Vision Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Mark G. Birkmann is one of 3,272 optometrists in Texas
Optometrist is Mark Birkmann's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Mark Birkmann is licensed in Texas.
Specialties and state licenses
- Optometrist, TexasPrimary
Optometrists near Mark Birkmann
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Mark G. Birkmann treated 261 Medicare patients in 2024, average age 74
CMS counts 261 Medicare patients who saw Mark Birkmann in 2024. The largest group is 65 to 74, with 149 patients. 75% of them have high cholesterol, and 71% have high blood pressure. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mark Birkmann's median patient age at 72, with 56% women.
Mark Birkmann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Mark Birkmann's Medicare patients by sex, 2024
- Women14756%
- Men11444%
Chronic conditions among Mark Birkmann's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis43%
- Diabetes28%
- Mood disorders21%
- Anxiety20%
- Depression20%
- Ischemic heart disease20%
Share of Medicare patients with each condition. A patient can have several.
Mark Birkmann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark G. Birkmann wrote 252 Medicare Part D claims in 2024
In 2024, Mark Birkmann wrote 252 Medicare Part D claims for 47 patients. 70% of them were for generic drugs.
Mark Birkmann's Part D claims by kind of drug, 2024
- Generic176 claims70%
- Brand-name76 claims30%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Mark G. Birkmann ranks in the 46th percentile for cataract surgery in Medicare
Mark Birkmann accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 21 procedures of cataract surgery by Mark Birkmann, more than 46% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Mark Birkmann ranks in Medicare procedure volume
- Cataract surgery
- 46th percentile21 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Mark G. Birkmann received $83 in industry payments in 2025
CMS Open Payments shows 3 general payments to Mark Birkmann from 3 drug and device companies in 2025. Food and beverage make up the largest share, 72% of the total. RxSight Inc paid the most, $39.
General payments to Mark Birkmann by kind, 2025 to 2025
- Food and beverage$6072%
- Entertainment$2328%
Companies that paid Mark Birkmann the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mark G. Birkmann graduated from University of Missouri St Louis - School of Optometry
Mark Birkmann graduated from University of Missouri St Louis - School of Optometry in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mark G. Birkmann's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Mark G. Birkmann
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark G. Birkmann's NPI number?
Mark G. Birkmann's NPI number is 1609880889. It was assigned on July 27, 2006, and it is active in the NPI Registry.
What does Mark G. Birkmann specialize in?
Mark G. Birkmann is an optometrist in Georgetown, Texas. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Mark G. Birkmann practice?
Mark Birkmann practices at 1013 W University Ave, Georgetown, TX 78628. Mark Birkmann's primary practice is Georgetown Vision Center in Georgetown, Texas. Dmand AI also links Mark Birkmann to 1 physician office and 1 medical group.
What is Mark G. Birkmann's office phone number?
The practice phone on file for Mark Birkmann is (512) 869-8821.
What is Mark G. Birkmann's medical license number?
Mark Birkmann holds Texas license 9137TG.
Does Mark G. Birkmann accept Medicare?
Yes. CMS lists Mark Birkmann as accepting Medicare assignment.
How many Medicare patients does Mark G. Birkmann see?
CMS counts 261 Medicare patients who saw Mark Birkmann in 2024, with an average age of 74.
Where did Mark G. Birkmann go to medical school?
Mark Birkmann graduated from University of Missouri St Louis - School of Optometry in 1992.
Has Mark G. Birkmann received payments from drug or device companies?
CMS Open Payments shows $83 in general payments to Mark Birkmann from 3 companies from 2025 to 2025. The largest total came from RxSight Inc.
How long has Mark G. Birkmann been practicing?
Mark Birkmann graduated from medical school in 1992, 34 years ago.
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